Texas Types of tetrapyrrolesBilanes(Linear) Bilirubin Biliverdin Stercobilinogen Stercobilin Urobilinogen Urobilin Phytobilins Phytochromobilin Phycobilins Phycoerythrobilin Phycocyanobilin Phycourobilin Phycoviolobilin MacrocycleCorrinoids Adenosylcobalamin Cyanocobalamin Methylcobalamin PorphyrinsProtoporphyrins Heme (b, c, a, o) Magnesium protoporphyrin Protoporphyrin IX Pterobilin Zinc protoporphyrin Phytoporphyrins Chlorophyll c Protochlorophyllide ReducedporphyrinsPorphyrinogens Uroporphyrinogen (I, III) Coproporphyrinogen (I, III) Protoporphyrinogen IX Chlorins Chlorophyllide (a, b) Chlorophyll (a, b) Pheophytin (a, b) Bacteriochlorophyll c Bacteriochlorins Bacteriochlorophyll a Isobacteriochlorins Siroheme Sirohydrochlorin Corphins Cofactor F430